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A Clinical Trial of a Metal on Poly Component Versus CORAIL Stem: A Bone Mineral Density Study
A Clinical Trial of a Metal on Poly Component Versus CORAIL Stem: A Bone Mineral Density Study

NCT01558752

CompletedNA

Sponsor: Ottawa Hospital Research Institute

Conditions: Total Hip Arthroplasty

Interventions: Total hip replacement with titanium shell and CORAIL stem, Total hip replacement with Modular Titanium Femoral Stem

Countries: Canada

The main goal is to prospectively evaluate bone mineral density adjacent to the femoral component and femoral bone remodeling of two different designs: CORAIL impaction broach titanium stem compared to a modular titanium femoral stem (Tri-lock). Patients will be randomized to one of the two treatment groups prior to surgery. Each patient will be evaluated at their regularly scheduled 10-14 days, 3, 6, 12 and 24 month visits following surgery. Patients will be asked to have bilateral DEXA bone mineral density tests (10-14 days post-surgery, and 6, 12 and 24 months post-operatively). Urine and serum samples (measures of bone turnover) will be collected at 3, 6 and 12 months post-operatively after an overnight fast. Patient reported questionnaires will be completed preoperatively and at the 3, 6, 12, and 24 month visits.

Eligibility overview

Sex: ALL

Age: 18 Years to 74 Years

Healthy volunteers: No

Study type: INTERVENTIONAL

Eligibility criteria
Inclusion Criteria:

* Patients who are undergoing primary hip surgery for osteo/degenerative arthritis (does not include traumatic arthritis, congenital hip dysplasia, or avascular necrosis).
* Patients who are skeletally mature, as determined by Risser sign or at least 18 years of age
* Patients under 75 years of age
* Patients for whom there is a reasonable expectation that they will be available for each examination scheduled over a two year post-operative follow-up period.

Exclusion Criteria:

* Patients with previous fusions, acute femoral neck fractures and above knee amputations.
* Patients with evidence of active local infection
* Patients with neurologic or musculoskeletal disease that may adversely affect gait or weight-bearing.
* Patients who have previously undergone an ipsilateral hemi resurfacing, total resurfacing, total bipolar, unipolar or total hip replacement device, or any prior hip surgery or retained internal fixation.
* Patients who are anticipated to require contralateral hip surgery in the next year
* Patients with known disorders of bone metabolism, systemic inflammatory disorders, and use of drug medications, including oral steroids, HRT, Tamoxifen, calcium, or vitamin D in the past year, and any past bisphosphonate therapy.
* Patients with a Body Mass Index (BMI) \> 35
* Patients with neuropathic joints
* Patients with severe documented psychiatric disease
* Patients requiring structural bone grafts
* Patients with an ipsilateral girdlestone
* Patients with sickle cell disease
* Patients with major acetabular bone stock deficiency
Locations (1)
  • Ottawa, Ontario, Canada